DefinePK

Abstract

In the contemporary mechanical engineering, we often face the problem of classification of processed parts according to the different criteria. In this research, we used hierarchical cluster analysis (CA) to form the groups of six grades of tool steels according to flat grinding machinability by wheel 5NQ46I6VS3 (Norton Vitrium). The topography of parts was estimated according to ten parameters of roughness, measured in two orthogonal directions coinciding with the vectors of transverse and longitudinal traverses. It was revealed that for the classification three clusters should be assigned, they include: 1 - W18, W6Mo5, W9Co5, W9Mo4Co8; 2 - W12V3Co10Mo3; 3 - Cr12. Clusters are put into a sequence of the deterioration of the topography of ground surface and, first, for flatness deviation and a decrease of its micro-hardness.